Mail-in-a-Box vs tsoHost
On privacy it's tsoHost. On price it's tsoHost. On features it's tsoHost. Here's everything side by side, last checked 25 October 2026.
Should you pick Mail-in-a-Box or tsoHost?
- Mail-in-a-Box suits you best if you want a free plan to start on; a calendar and contacts alongside your mail; and apps whose code is public.
- tsoHost is the better pick if you want your mailbox stored in the United Kingdom.
| Feature | Mail-in-a-Box | tsoHost |
|---|---|---|
| Overall | Not rated | 3.0 |
| Privacy | Not rated | 2.5 |
| Price | Not rated | 3.5 |
| Features | Not rated | 3.5 |
| Cheapest plan | Open source Free | 123 Reg email £1.99 a mailbox a month for the first year, then £47.88 a year (123 Reg) |
| Free plan | Yes, open source | No |
| Storage | Not confirmed | 10 GB |
| Your own domain | ✓ Yes | ✓ Yes |
| End-to-end encryption | No | No |
| Company based in | United States | United Kingdom |
| Your data is kept in | Your own server | United Kingdom |
| Founded | 2013 | Unknown |
| Free trial | Free to download | Unknown |
| Funded by advertising | No | No |
| Works in any mail app | ✓ IMAP and SMTP | ✓ IMAP and SMTP |
| Calendar and contacts | ✓ Yes | No |
| Aliases | Yes | Yes |
| Open-source apps | ✓ Yes | No |
| Sign up without ID | No | No |
| White label | No | Unknown |
| Reader offer | None | None |
| Last checked | 25 October 2026 | 25 October 2026 |
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Where they differ
- On price: Mail-in-a-Box Open source at Free, against tsoHost 123 Reg email at £1.99 a mailbox a month for the first year, then £47.88 a year (123 Reg).
- For free, Mail-in-a-Box gives you a free plan (open source), and tsoHost no free plan.
- Mail-in-a-Box comes with storage not confirmed and tsoHost with 10 GB of storage.
- Data location: Your own server for Mail-in-a-Box, United Kingdom for tsoHost.
- Mail-in-a-Box is based in the United States and tsoHost in the United Kingdom, so different privacy laws apply.
Mail-in-a-Box and tsoHost: your questions
Do Mail-in-a-Box and tsoHost work with my own domain?
Yes, both do. Mail-in-a-Box: Yes. tsoHost: Yes.
Where do Mail-in-a-Box and tsoHost keep my email?
Mail-in-a-Box keeps it in Your own server. tsoHost keeps it in the United Kingdom.
Recent price changes
I haven't seen either change its price since I started checking on 25 October 2026.
The latest headlines: Mail-in-a-Box news · tsoHost news.
Alternatives to Mail-in-a-Box and tsoHost
- mailbox.org4.5 out of 5 overall
- Proton Mail for Business4.0 out of 5 overall
- Tuta Business4.0 out of 5 overall
Mail-in-a-Box vs mailbox.org · tsoHost vs mailbox.org · Mail-in-a-Box vs Proton Mail for Business · tsoHost vs Proton Mail for Business · Mail-in-a-Box vs Tuta Business · tsoHost vs Tuta Business
Switching between them
Whichever you choose, the move follows the same steps. Pick your two providers for the steps.